package xyz.bernkastel.goods_in_great_demand.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;
import xyz.bernkastel.goods_in_great_demand.common.R;
import xyz.bernkastel.goods_in_great_demand.entity.Category;
import xyz.bernkastel.goods_in_great_demand.service.CategoryService;

import java.util.List;

/**
 * 分类的管理
 * 包括商品分类和套餐
 */
@RestController
@RequestMapping("/category")
public class CategoryController {
    @Autowired
    private CategoryService categoryService;

    /**
     * 新建分类
     *
     * @param category
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody Category category) {
        categoryService.save(category);
        return R.success("新增成功！");
    }

    /**
     * 按照套餐类型排序分页
     *
     * @param page
     * @param pageSize
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize) {
        //分页构造器
        Page pageInfo = new Page(page, pageSize);
        //条件构造器
        LambdaQueryWrapper<Category> lambdaQueryWrapper = new LambdaQueryWrapper();
        //添加过滤条件

        //添加排序条件
        lambdaQueryWrapper.orderByDesc(Category::getType);
        //执行查询
        categoryService.page(pageInfo, lambdaQueryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 根据id删除分类
     *
     * @param id
     * @return
     */
    @DeleteMapping
    public R<String> delete(Long id) {
        categoryService.remove(id);//自定义方法
        return R.success("分类删除成功");
    }

    /**
     * 根据id修改分类信息
     *
     * @param category
     * @return
     */
    @PutMapping
    public R<String> update(@RequestBody Category category) {
        categoryService.updateById(category);
        return R.success("修改分类信息成功！");
    }

    /**
     * 根据条件查询分类数据
     *
     * @param category
     * @return
     */
    @GetMapping("/list")
    public R<List<Category>> list(Category category) {
        //条件构造器
        LambdaQueryWrapper<Category> queryWrapper = new LambdaQueryWrapper<>();
        //条件
        queryWrapper.eq(category.getType() != null, Category::getType, category.getType());
        //排序条件
        queryWrapper.orderByAsc(Category::getSort).orderByDesc(Category::getUpdateTime);
        List<Category> list = categoryService.list(queryWrapper);
        return R.success(list);
    }
}
